Most nations today beat their foreign policy drums largely to economic rhythms, but less so the United States. Most nations define their interests largely in economic terms and deal mostly in economic power, but less so the United States. Washington still thinks of its security mainly in traditional military terms and responds to threats mainly with force. The principal challenge for Washington, then, is to recompose its foreign policy with an economic theme, while countering threats in new and creative ways. The goal is to redefine "security" to harmonize with twenty-first-century realities.